For those who haven't seen it yet
On September 30, 2011 at 11:08am, Derek Deville's Qu8k (pronounced "Quake") launched from the Black Rock Desert in Nevada to an altitude of 121,000' before returning safely to earth. Above 99% of the atmosphere the sky turns black in the middle of the day and the curvature of the earth is clearly visible.
Watch with sounds on! It's cool and quite creepy when the rocket is in space
[youtube]http://www.youtube.com/watch?v=rvDqoxMUroA[/youtube]